Improvement in door-buttons



'0. F. FUGELSTRAND.'

Duur-Buttons.

N0. 135,215, A Patentedjan.28,1873.

W'hess e s UNITED STATES PATENT OFFICE.

OTTO F. FOGELSTRAND, OF KENSINGTON, CONNECTICUT.

IMPROVEMENT IN DOR'BUTTONS.

Specification forming part of Letters Patent No. 135,2!5, dated January28., 1873.

To all whom it may concern:

Be it known that I, OTTO F. FoGELsTRAND, of Kensington, in the countyoi' Hartford and State of Connecticut, have made certain new and usefulImprovements in Door-Buttons, of which the following is a specification,reference being had to the accompanying' drawing, in which- Figure 1 isa iiat or plan view of the button complete. Fig. 2 is a central verticalsection of the same through the dotted line x m. Fig. 3 is a side viewor elevation of the base A with the button removed. Fig. 4 is a view ofthe bottom or under side of the button.

This invention is one of that kind or class of door-buttons in which thebutton proper remains slightly locked at certain points in itsrevolution. These buttons have heretofore had a piece separate anddistinct from the button and button-plate called a springpoint, bearingraised points, shutting at certain times into corresponding indentationsin the button-plate. My invention consists in making these raised pointsin one piece with the button or button-plate, and making thecorresponding indentations in the button -plate or button, thusdispensing with such separate piece, and so producing a cheaper, moredurable, and more efficient article.

The letter A indicates the common larger part of the base-plate, and Bindicates the common smaller part. From the plate A rises the shell awith a hole through the top for the passage of the rivet b. Around thebase of this shell rises a small ring, al, having on it at equaldistances apart four spurs, a2. The

letter C indicates the button,which has a hollow shell, c, fitting uponthe outside of the shella. In the base of this shell are four nicks orgrooves, o', corresponding to and fitting upon the spurs a2. The letterZ1 indicates a rivet, whose head bears upon the outside of the shell c,and runs down through both the shells a o. It has a collar, c, fastenedto its foot, securing between the collar and the inside of the top ofthe shell a the spiral compression spring which tends to hold the buttondown somewhat firmly. The button can, however, be revolved by a personslingers, the base ofthe shell o rising and riding on the spurs a2 tillthe nicks o and the spurs coincide, which occurs at each' quarterrevolution, when the nicks snap down upon the spurs and gently lock thebutton in position. The nicks and spurs are so arranged that the buttonwill lock when in the position shown in Fig. 1, and also when the buttonis revolved a quarter ofa turn either way. The same construction isapplicable to a window-fastener, leaving off in such case one of thewings ofthe button.

I claim as my invention- The combination of the base-plate A bearing theshell a, having the raised points a2 around its foot, the button Chaving the shell c overlying the shell a, with notches at its basecorresponding to the point-s a2, the rivet d, the ilange c, and thespring i, the whole constructed, arranged, and designed to operatesubstantially as described, for the purpose set forth.

In witness whereof I hereto set my hand this 9th day of September, 1872.

OTTO F. FOGELSTRAND.

WVitnesses:

E. W. MORGAN, O. M. BRowNE.

